Is BIIB or BNTX more undervalued in 2026?

CirclFi compares Biogen Inc. (BIIB) and BioNTech SE (BNTX) using 13 institutional-grade valuation models. BIIB has a Quality of Company score of 8.4/10 while BNTX scores 1.7/10.

Which is a better buy — BIIB or BNTX?

Compare intrinsic values from 13 independent models against current market prices. CirclFi also calculates Value Trap scores. This is not financial advice — conduct your own analysis.

How do BIIB and BNTX valuations compare?

BIIB at $196.00 and BNTX at $95.95 are compared across Bayesian DCF, EPV, EROIC Spread, First Chicago, Markov DDM, and 8 additional models.

BIIB vs BNTX Valuation Comparison 2026 — Intrinsic Value Analysis

BIIB

Biological Products, (No Diagnostic Substances)

Biogen Inc.

Quality

8.4

out of 10

Value Trap

SAFE

Price

$196.00

Last close

Models

13/13

Active

BNTX

Biological Products, (No Diagnostic Substances)

BioNTech SE

Quality

1.7

out of 10

Value Trap

—

Price

$95.95

Last close

Models

12/13

Active

Model-by-Model Comparison

Model	Type	BIIB Fair Value	BIIB Upside	BNTX Fair Value	BNTX Upside
Bayesian DCF	Intrinsic	$140.11	-28.5%	$30.20	-68.5%
Earnings Power Value	Intrinsic	$106.15	-45.8%	$49.11	-53.4%
EROIC Spread	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
First Chicago	Scenario	$•••.••	••.•%	$•••.••	••.•%
Markov DDM	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
ML-RIV	Intrinsic	$•••.••	••.•%	$•••.••	••.•%
Dynamic NAV	Asset-Based	$•••.••	••.•%	$•••.••	••.•%
PWERM	Option-Based	$•••.••	••.•%	$•••.••	••.•%
Regime Cross-Sectional	Relative	$•••.••	••.•%	$•••.••	••.•%
Sentiment SOTP	Hybrid	$•••.••	••.•%	$•••.••	••.•%
CUCE Ensemble	Ensemble	$•••.••	••.•%	$•••.••	••.•%
FTNN Topology	Relative	$•••.••	••.•%	$•••.••	••.•%
RCMH-DCF	Intrinsic	$•••.••	••.•%	$•••.••	••.•%

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BIIB vs BNTX — Which Stock Is More Undervalued?

BIIB scores higher with a 8.4/10 quality rating vs BNTX's 1.7/10. Both stocks are analyzed daily using SEC EDGAR filings across 13 independent models.

Comparing Biogen Inc. (BIIB) and BioNTech SE (BNTX) across 13 institutional-grade valuation models reveals how each company's intrinsic value stacks up against its market price. CirclFi's engine processes SEC EDGAR 10-K and 10-Q filings, FRED macroeconomic data, and GDELT news sentiment to generate independent fair value estimates daily.

BIIB currently trades at $196.00 with a QOC of 8.4/10, while BNTX trades at $95.95 with a QOC of 1.7/10.

Both companies are analyzed with models spanning intrinsic (Bayesian DCF, EPV), scenario-based (First Chicago), regime-switching (Markov DDM, RCMH-DCF), machine learning (ML-RIV, FTNN Topology), and ensemble methods (CUCE).